All special high performance engines 396 and 427 engines had the 1111499 distributor with the 732CCW cams. This included the L78 and L72 like you mentioned, but I also believe it was also on the L89 aluminum head 396/375 HP engine. The 1111499 distributor was also used on the 396/350 HP L34 with AT.

Thanks Jeff. Then I wonder what application uses the 534 cam? I also have another 1111169 distributor with a 524 cam. I'm pretty sure the differences in the cams is the length of the advance slot but by how much I don't know.

Bob, I checked two of the 1111169 distributors that I have. One has the B1 vacuum advance and the other has the MS 201 15. The 1111445 has the B1. I believe the B1 was used on most of the 396 engines in 67 and 68.